NICHOLSON WATER & SEWER ASSOCIATION INC.

NPDES permit MS0033871 · Minor POTW · effective, expires 2027-11-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 1 forms filed late

Last period with anything received: 2025-12-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MS permits in EPA's filings — check your permit).

Limits in force (25)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 24 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 36 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 36 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 54 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMX MO AV <= 60 mg/L all year
001Solids, total suspendedDAILY MX <= 60 mg/L all year
001Solids, total suspendedMX MO AV <= 90 lb/d all year
001Solids, total suspendedDAILY MX <= 90 lb/d all year
001Nitrogen, ammonia total [as N]MX MO AV <= 2 mg/L all year
001Nitrogen, ammonia total [as N]MX MO AV <= 1.37 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 2.06 mg/L all year
001Nitrogen, ammonia total [as N]MX MO AV <= 3 lb/d all year
001Nitrogen, ammonia total [as N]MX MO AV <= 2.1 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 5 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 3.1 lb/d all year
001Flow, in conduit or thru treatment plantMX MO AV <= .18 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMX MO AV <= .011 mg/L all year
001Chlorine, total residualDAILY MX <= .019 mg/L all year
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliDAILY MX <= 410 #/100mL all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states